Dahlia plant named &#39;DATOOGTYVE&#39;

ABSTRACT

A new distinct cultivar of  Dahlia  plant named ‘DATOOGTYVE’, characterized by its upright to slightly spreading shape, with stiff and strong lateral stems and thick compound leaves, with up to 7 leaflets. The color of the mature leaves are RHS Yellow-green 147A (upper side) and RHS Grayed-green 191A (Underside). Compound leaves are 8-24 cm in length, and 8-18 cm in width. Only a few single leaves are present. Composite flower heads are 9-11 cm in diameter, with a large number of ray florets (about 150 to 200). The ray florets are RHS Red-purple 61A or RHS Red-purple 71A.

LATIN NAME OF THE GENUS AND SPECIES OF THE CLAIMED PLANT

Dahlia Cav.

VARIETY DENOMINATION

‘DATOOGTYVE’

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Dahliaplant, botanically known as Dahlia Cav., of the Compositae (Asteraceae)family, hereinafter referred to by the cultivar name ‘DATOOGTYVE’.

The new Dahlia cultivar is a product of a planned breeding programconducted by the inventor, Rune Nielsen, in Stige, Denmark. Theobjective of the breeding program is to develop a new Dahlia cultivarwith an upright, strong and healthy growth habit, suitable for largescale container production and with good garden performance; fullydouble flowers creating globular-shaped flower head (composite flowerheads with many ray florets) with an attractive inflorescence color.

The new Dahlia cultivar originated from a cross, made in a controlledbreeding program by the inventor in 2008, in Stige, Denmark. The femaleor seed parent is Red Dahlia cultivar designated ‘DA12’ (Patented, U.S.Plant Pat. No. 19,632). The male or pollen parent is purple Dahliadesignated 58898 (Breeder's Reference; unpatented).

Asexual reproduction of the new Dahlia cultivar by terminal cuttings wasfirst performed in September, 2009 in Stige, Denmark, and hasdemonstrated that the combination of characteristics as herein disclosedfor the new cultivar are firmly fixed and retained through successivegenerations of asexual reproduction. The new cultivar reproduces true totype.

BRIEF SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined tobe unique characteristics of ‘DATOOGTYVE’, which in combinationdistinguish this Dahlia as a new and distinct cultivar:

1. Cultivar with upright to slightly spreading shape;

2. Cultivar with stiff and strong lateral stems and thick compoundleaves, with up to 7 leaflets. Color of mature leaves RHS 147A (upperside) RHS 191A (Underside);

3. Compound leaves with 3 to 7 leaflets, 8-24 cm in length, and 8-18 cmin width, and only a few single leaves present.

4. Composite flower heads, 9-11 cm in diameter, with a large number ofray florets (about 150 to 200); and

5. Ray florets which are RHS Red-purple 61A or RHS Red-purple 71A.

Plants of the new Dahlia ‘DATOOGTYVE’ differ from plants of the parent,‘DA12’ (Patented, U.S. Plant Pat. No. 19,632) in the traits described inTable 1.

(The male parent is no longer available for evaluation.)

TABLE 1 Comparison with Parental Variety Comparison New CultivarCultivar Trait ‘DATOOGTYVE’ ‘DA12’ Plant Size Height: About 30-40 cm.About 40-45 cm. Diameter: About 40-45 cm. About 40-44 cm. Overall PlantUpright to Cylindrical, a Shape: spreading with little spreading. basalbranching. Inflorescences in Inflorescences in composite heads.composite heads. Basal branches with flowers Length: 25-35 cm. 25-40 cm.Diameter: 12-14 mm 8-12 mm Strength: Stiff and strong. Stiff and strong.Color: RHS Yellow-green RHS Yellow- 146B on most green 144A. parts. RHSBrown 200B on parts exposed to sun, and a few stains on the oldestparts. Leaves Colour mature upper side: RHS Yellow-green RHS Green 139A.147A. Underside: RHS Grayed-green RHS Grayed-green 191A. 191B. PeduncleColour mature: RHS Brown 200B. RHS Brown N200A Colour early RHSYellow-green RHS Yellow-green immature: 146B 146B Color of ray floretsUpper side: RHS Red-purple RHS Red 44A. 61A/RHS Red- purple 71A.

Of the many commercial cultivars known to the present inventor, the mostsimilar in comparison to the new Dahlia ‘DATOOGTYVE’ is the Dahliacultivar ‘DAELLEVE’(Patented, U.S. Plant Pat. No. 19,184), in thecharacteristics described in Table 2:

TABLE 2 Comparison with Comparison Variety Comparison New CultivarCultivar Trait ‘DATOOGTYVE’ ‘DAELLEVE’ Plant Size Height: About 30-40cm. About 40-45 cm. Diameter: About 40-45 cm. About 40-45 cm. OverallPlant Upright to Cylindrical, a Shape: spreading with little spreading,basal branching. with basal Inflorescences in branching. compositeheads. Inflorescences in composite heads. Basal branches with flowersLength: 25-35 cm. 25-40 cm. Diameter: 12-14 mm 8-12 mm Strength: Stiffand strong. Stiff and strong. Color: RHS Yellow-green RHS Brown 146B onmost parts. 200B. RHS Brown 200B on parts exposed to sun, and a fewstains on the oldest parts. Leaves Colour mature upper side: RHSYellow-green RHS Green 147A. 139A. Underside: RHS Grayed-green RHSGrayed-green 191A. 191B. Peduncle Colour mature: RHS Brown 200B. RHSBrown 200B Colour immature: RHS Yellow-green RHS 146B 146B Color of rayflorets Upper side: RHS Red-purple Base: Purple 67A. 61A/RHS Red- Tip:Red-purple purple 71A. 62D.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of thenew Dahlia ‘DATOOGTYVE’ showing the colors as true as is reasonablypossible with colored reproductions of this type. Colors in thephotographs may differ slightly from the color value cited in thedetailed botanical description, which accurately describe the color of‘DATOOGTYVE’.

FIG. 1 shows a close-up view of the composite flower head from‘DATOOGTYVE’.

FIG. 2 shows a side view perspective of a typical flowering plant of‘DATOOGTYVE’ in a 19 cm pot, at 8 weeks of age after potting the youngplant.

FIG. 3 shows a close-up view of different development stages of thecomposite flower head of ‘DATOOGTYVE’.

FIG. 4 shows a close-up view of the 150-200 ray florets from onecomposite flower head of ‘DATOOGTYVE’

FIGS. 5 and 6 shows a close-up view of the different compound and singleleaf sizes of ‘DATOOGTYVE’.

FIG. 7 shows a comparison between ‘DA12’, ‘DAELLEVE’ and ‘DATOOGTYVE’,(Breeders reference: 6666A).

DETAILED BOTANICAL DESCRIPTION

The new Dahlia ‘DATOOGTYVE’ has not been observed under all possibleenvironmental conditions. The phenotype of the new cultivar may varywith variations in environment such as temperature, light intensity, andday length without any change in the genotype of the plant.

The aforementioned photographs, together with the followingobservations, measurements and values describe the new Dahlia‘DATOOGTYVE’ as grown in a protected environment in a glass, greenhousein Fyn, Odense, Denmark, under conditions which closely approximatethose generally used in commercial practice. During propagation,conducted in a glasshouse, vegetative cuttings were planted 6 Jul. 2011in small propagation pots with peat as substrate, and then placed in aplastic tunnel averaging about 21° C. and received photoperiodictreatments of 18 hours. Supplementary light was given when natural lightfell below 3000-4000 Lux. Rooting occurred about 12 days after planting.In third week after planting the cutting (27 Jul. 2011), young plantswere potted in an 19 cm pot in a glass covered greenhouse, maintained at18° C. to 26° C. during the day, and at 17° C. to 19° C. during thenight. Plants were grown under natural daylight conditions. Irrigationwas done with water. The EC measured in the soil was maintained between2.0 to 3.0. One week after potting, the first growth regulation wasgiven: a spray with 85% daminozide, 0.2%, 40-100 ml/m2. During theproduction time, 9 additional sprayings were given with 85% daminozide,0.2%, 40-100 ml/m2.

Color references are made to The Royal Horticultural Society ColourChart (R.H.S.), 2001 edition, except where general colors of ordinarysignificance are used. Color values were taken under September daylightconditions at approximately 12:00 PM and 2:00 PM in Fyn, Odense,Denmark. The age of the ‘DATOOGTYVE’ plants described is 10-11 weeks(including propagation time).

-   Classification:    -   -   Botanical.—Dahlia Cav.-   Parentage:    -   -   Female or seed parent.—Dahlia variety designated ‘DA12’            (Patented, U.S. Plant Pat. No. 19,632).        -   Male or pollen parent.—5889B.-   Propagation:    -   -   Type.—Vegetative terminate cuttings.        -   Time and temperature to initiate roots.—About 9 to 12 days            at 21° C. in tunnels or flat covered in a greenhouse.        -   Time and temperature to produce a rooted young plant.—About            21 days at 21° C. during rooting phase, followed by 18° C.        -   Rooting habit.—Fine, fibrous; Color of root: RHS            Yellow-white 158C.        -   Tuber development.—Plants might develop tubers in late fall            when planted outside.-   Plant description:    -   -   General appearance and form.—Upright to slightly spreading            shape. Inflorescences in composite heads.        -   Growth rate.—Growing about 3 to 5 cm per week during            production period.        -   Plant height (from soil level to top of plant plane).—About            3040 cm.        -   Plant width (spread).—About 40-45 cm.        -   Crop time to produce a mature flowering plant.—It requires 3            to 4 weeks to produce a young plant in a 35 mm propagation            plug. After potting 7 to 11 weeks are required to produce            finished flowering plants in 19 cm pots.-   Stem:    -   -   Shape.—Round.        -   Length (pinched above 3 pair of leaves).—About 3-5 cm.        -   Diameter.—About 12-15 mm.        -   Strength.—Stiff and strong.        -   Aspect.—Upright.        -   Texture.—Fluted woody surface.        -   Color.—RHS Gray-brown 199B to RHS Gray-brown 199C.-   Branches:    -   -   Branching habit.—Basal branching with lateral branches.        -   Number of basal branches per plant.—About 3-5 (when pinched            above 3 pair of leaves).        -   Length (including flowers).—About 25-35 cm.        -   Diameter.—About 12-14 mm.        -   Strength.—Stiff and strong.        -   Aspect.—Upright to slightly spreading.        -   Texture.—Smooth and glabrous.        -   Color.—Mature: RHS Yellow-green 146B on most parts. RHS            Brown 200B on parts exposed to sun, and a few stains on the            oldest parts.        -   Internodes length.—About 15-40 mm.        -   Internodes color.—RHS Yellow-green 146B.-   Foliage description:    -   -   Type.—Compound leaves divided into 1-7 leaves.        -   Number of leaves per branch.—About 8-12 per branch.        -   Color of leaves (leaves and leaflets).—Color of upper side            (mature) RHS 147A. Color of underside (mature) RHS 191A.            Color of upper side (immature) RHS 137A. Color of underside            (immature) RHS 137C.        -   Venation (leaves and leaflets) Pattern: Pinnate Color of            upper side: RHS 146A. Color of underside: RHS 146B.-   Compound leaves:    -   -   Number of leaflets per compound leaf.—2-7.        -   Length of compound leaf.—8-24 cm.        -   Width of compound leaf.—8-18 cm.        -   Petiole of compound leaves.—Shape: Semi circular, with deep            furrow on adaxial side. Length: 4-8 cm. Diameter: 3-10 mm.            Texture: Smooth and glabrous. Color: RHS Yellow-green 146B            to RHS Brown 200B on sun exposed areas.        -   Leaflets of compound leaf.—Terminal leaflet quantity: 1            Terminal leaflet length: 6-12 cm. Terminal leaflet width:            4-6 cm. Terminal leaflet shape: Ovate. Terminal leaflet            shape at apex: Acuminate. Terminal leaflet shape at base:            Cordate to rounded (not always symmetric). Terminal leaflet            margin: Dentate. Terminal leaflet texture (both sides):            Rugose. Rachis length: 1-4 cm. Rachis Diameter: 2-4 mm.            Rachis color: Upper side: RHS Yellow-green 147A with a thin            stripe of on the middle of RHS Brown 200A/RHS Yellow-green            146B. Under side: RHS Yellow-green 146B. Lateral leaflet            quantity: 2-6. Lateral leaflet length: 3-10 cm. Lateral            leaflet width: 3-6 cm. Lateral leaflet overall shape: Ovate.            Lateral leaflet shape at apex: Acuminate (mostly            asymmetric). Lateral leaflet shape at base: Rounded (not            always symmetric). Lateral leaflet margin: Dentate. Lateral            leaflet texture (both sides): Rugose.        -   Simple leaves.—Oldest leaves and leaves near the composite            flower heads. Simple leaves overall shape: Ovate. Simple            leaves shape at apex: Acuminate. Simple leaves shape at            base: Cordate to rounded. Simple leaves length: 6-20 cm.            Simple leaves width: 4-8 cm. Simple leaves margin: Dentate.            Simple leaves texture: Rugose. Petiole shape: Semi circular,            with deep furrow on adaxial side. Petiole length: 1 cm to            7 cm. Petiole diameter: 3 mm to 8 mm. Petiole texture:            Smooth and glabrous. Petiole color: RHS Yellow-green 146B to            RHS Brown 200B on sun exposed areas.-   Inflorescence description:    -   -   Natural flowering season.—Grown outside as a bedding plant,            flowering occurs continuously during growing season from            spring to autumn/(In Denmark, from June to beginning of            October). Plants can be brought to flower anytime when grown            under the recommended greenhouse conditions.        -   Time to flower.—50 to 80 days from potting a young plant            until flowering.        -   Inflorescence longevity on the plant.—Inflorescence will            maintain good color and substance for about 6-10 days;            however, the longevity of individual inflorescence is highly            dependent on temperature and light conditions. Inflorescence            persistent.        -   Type.—Composite flower heads.        -   Arrangement and shape.—Persistent, single, composite            inflorescences from leaf axils. Disc and ray florets            arranged acropetally in a composite flower head. Upright,            slightly spreading. Terminal young flower head/buds            initially 0-30°. Buds from axillary shoots 60-90°. When            flower opens 30-60°.        -   Quantity of inflorescences heads.—Freely flowering; about 18            buds and open inflorescences per plant.        -   Fragrance.—None.        -   Bud (Inflorescences head)—.        -   Rate of opening (from showing color to fully open.).—4 to 10            days. The rate of opening is highly dependent on temperature            and light conditions. Length: About 10-14 mm. Diameter:            About 18-24 mm. Shape: Flat globular. Texture: Glabrous,            shining. Color: RHS Yellow-green 144C.        -   Peduncle.—From both terminate and axillary shoots. Length:            About 8-14 cm. Diameter: About 4-6 mm. Angle: About 0-20°            from vertical. Strength: Stiff and strong. Texture:            Glaucous. Color (mature/immature, directly sun RHS Brown            200B. exposed): Color (mature/immature not directly sun            exposed) RHS Yellow-green 146B (only in very young stage).        -   Inflorescence head.—Depth (height): 3-5 cm. Diameter: 9-11            cm.        -   Ray florets.—Arrangement: Imbricate, in about 12 to 14            whorls of ray florets, each with 12 to 18 florets to equal a            total of about 150-200 ray florets per flower head,            depending on light and temperature conditions. Quantity per            Inflorescence head: 150-200. Length: 40-45 mm. Widths:            20-24 mm. Overall shape: Obovate Apex shape: Obtuse Base            shape: Acuminate, slightly fused. Margin: Entire Texture:            Upper side: Glabrous. Under side: Pubescent. Colour when            opening fused ray floret starting to show color: RHS Purple            N77A. Colour when fully opened Color upper side: RHS            Red-purple 61A/RHS Red-purple 71A. Color underside: RHS            Red-purple 72A.        -   Disc florets.—Arrangement: 50-65 yellow-orange disc florets            arranged in center of inflorescence head. Appearance:            Quantity per Inflorescence head: 50-65. Length: 8-12 mm.            Diameter: 2 mm. Overall shape: Tubular. Apex shape: Star            with 5 triangular tips. Base shape: Fused to tube. Color RHS            Yellow-orange 21A.        -   Phyllary.—Arrangement: One subtending each floret. Quantity:            200-265. Length: 10-25 mm. Width: 6-10 mm. Overall shape:            Rounded. Shape at apex: Acute with rounded tip. Shape at            base: Fused. Margin: Entire. Color: Mature: RHS Yellow-green            151C. RHS Yellow-green 146A on underside of the 8-10            phyllaries in the outer whorl, Immature: RHS Yellow-green            151C.        -   Brachts.—Arrangement and appearance: Reflexed, involucral            bracts. Quantity: 7-8. Length: 14-20 mm. Width: 6-8 mm.            Overall shape: Subulate. Apex shape: Acute. Base shape:            Sessile. Margin: Entire. Texture: Glabrous. Colour mature            Upper side: RHS 137B. Underside: RHS 137C. Colour immature            Upper side: RHS 137B. Underside: RHS 137C.-   Reproductive organs:    -   -   Androecium.—Location: Disc florets only. Stamen number: 5,            fused into synandrous tube around style. Stamen length:            About 6-8 mm. Anther shape: Tubular. Anther length: About            4-5 mm. Pollen amount: Some. Pollen color: RHS N25C.        -   Gynoecium.—Poorly developed and not present on all flowers.            Location: Ray and disc florets. Quantity: Up to 1. Pistil            length: 8-10 mm. Stigma shape: Bifurcate. Stigma length:            About 2 mm. Stigma color: Not visible due to the cover of            pollen brushed of the anthers. It then appears RHS N25C.            Style length: About 3 mm. Style color: RHS 151C. Ovary            color: RHS 151C.-   Seed/fruit: Seed and fruit production has not been observed.-   Disease/pest resistance: Resistance to pathogens and pests common to    Dahlia has not been observed.-   Disease/pest susceptibility: Susceptibility to pathogens and pests    common to Dahlia has not been observed.-   Temperature tolerance: Plants of the new Dahlia have exhibited good    tolerance rain, wind and drought; however, flowering may cease    during hot periods (temperatures above 25° C.). Low temperature    tolerance to 1° C.-   Growth regulators: Daminozide (85% water soluble dryconcentrate    formulation)

What is claimed is:
 1. A new and distinct cultivar of Dahlia plant named‘DATOOGTYVE’, as illustrated and described herein.